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Humic Acid

Humic acid was shown to be a very good root and growth stimulator in field trials of in-ground trees at UCR.

I decided to try it as a rooting "hormone" on some cuttings. to see if it might have beneficial affects.

Soaked a half dozen Encanto Honey cuttings in a 500mg/L solution for a few hours, and then prepared them for rooting with the "New Bag method".

It is a small test, but hopefully it will have results that will indicate that a wider trial is warranted. It has been two days, and no roots yet. ;-))

I am hoping that this will work in much the same fashion that "willow tea" is purported to perform.

I would really like to know more about it. i have used alot of differant rooting agents. willow tea being organic, i would have to say i like dip n grow. have never went wrong there. not a fan of powders though. i just thing that a liquid or a gell would get better tissue absorbtion than a dry powder would but thats just me.

We used this before for commercial tomatoes and peppers, I think it does help, in hydroponics of course it must be applied regularly for beneficial results but I have never tried it in the soil or pots so I am not sure how it works there, I imagine it will work the same if not better.

Where did you get it?  I put some composted pine bark in hoping it will have the same effect.

Nature's Lawn and Garden. There are many sources, some cheaper, some more expensive. Pay attention to the %age "active ingredient" as some are considerably less %age, often for same $.

Yes, humic acid can promote plants growth and crease the yield and quality. You can buy some from Amazon for testing.

It will be interesting to hear the results of Jon's test. There are a lot of people studying humic acids. The real difficulty is that there is significant variation by source and very probably from prep to prep. Here is a paper demonstrating different results from humic acids prepared different ways:
http://www.biosci.ohio-state.edu/~soilecol/Full%20articles/2006/Effects%20of%20humic%20acids.pdf
Of course that is true of almost everything one buys to grow things in.
Here is a link with WAY more than you probably want to know:
http://pubs.usgs.gov/sir/2004/5121/
Here is a company telling you all the great things about humic substances:
http://www.humateproducts.com/
If anyone is really interested, I am happy to point you to more comprehensive scientific reviews. There are also books on the subject.


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